Hello, I need some tips about handling large arrays in IDL. The IDL gives an error message when I try to create arrays of the size (100000 x 100000). The messages are like " array contains too many elements" or "cannot allocate memory". A way to get around the problem is to create many smaller arrays but I would like to keep this option as the last one. The RAM size of the server is 8GB, probably it is maximum that can fit into the machine. I would be grateful to have suggestions from you to create large arrays of size (100000 x 100000). Thank you. Regards, Vijay